notch

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notch

US and Canadian a narrow pass or gorge

notch

[näch]
(electronics)
Rectangular depression extending below the sweep line of the radar indicator in some types of equipment.
(engineering)
A V-shaped indentation or cut in a surface or edge.
(geology)
A deep, narrow cut near the high-water mark at the base of a sea cliff.
(geography)
A narrow passage between mountains or through a ridge, hill, or mountain.

notch

A cutout in a log or timber, usually at or near one of its ends, that is used to form a rigid joint when mated with another appropriately cutout log or timber at right angles to it; for example, at the corners of a log cabin or log house. See corner notch, diamond notch, double-saddle notch, dovetail notch, half-cut notch, half-dovetail notch, halved-and-lapped notch, lap notch, log notch, round notch, saddle notch, single notch, single-saddle notch, square notch, V-notch.
References in periodicals archive ?
Caption: Figure 1: Landmarks: sella (S), nasion (N), menton (Me), antegonial notch (Ag), sigmoid notch (Sm), orbitale (Or), and porion (Po).
The resulting upward curving of the inferior border of the mandible anterior to the angular process (gonion) is known as the antegonial notch [10].
On the radiographs of the hemimandibles, the following distances were measured bilaterally: CP-AP --condylar process to angular process; TM-AN--distal face of the third molar to antegonial notch; II-CP--lower insertion of incisor to condylar process; and II-AP--lower insertion of incisor to angular process (Figure 2).